Most Pointless Battle

[Prince Cobra]

I have a brilliant example of a pointless war ( not only a battle). I always praise the achievements of Balkan states in Middle ages (when they deserve it of course) but in XIV century their rulers were surprisingly blind, blind, blind...if not stupid Of course I mean their attitude to the Ottoman Turks.
So here is my example- the Bulgarian tsar Ivan(John)-Alexander and his byzantine colleague emp. John V started one of the numerous wars between byz and bulgars. Why? Because they wanted to rule some rich but small ports on the Black sea. No problem they wanted them- everyone wants to extend his kingdom. BUT THERE WAS A SMALL DIFFERENCE BETWEEN THIS WAR AND THE OTHERS- BEFORE THESE WERE POWERFUL EMPIRES NOT STATES IN A CRISIS AND WHAT IS MORE IMPORTANT- THE OTTOMANS HAD ALREADY CONQUERED A SOUTHEASTERN THRACIA. And because of the tradition they wanted to fight for these small ports. So between 1364 and 1369 the two states were fighting. The result- no corrections of the territory (sarcastic). Furthermore the Turks conquered Adrianople and our two rivals saw the real danger (too late ). We know how the story ends- Ottomans conquered the Balkan peninsula and put it in a long isolation from European culture ( end of the Balkan glory ) .
I hope somebody will give better example of a pointless battle although I doubt that is possible.